His first noticeable role was as Phillip Chancellor IV on the soap opera The Young and the Restless, from 2000 to 2001.He was nominated for a 2001 Young Artist Award for Best Performance in a Daytime Series for his work.In 2007, Badgley was cast in The CW's teen drama series Gossip Girl as Dan Humphrey, based on the book series of the same name by Cecily von Ziegesar.He initially turned down the role, but accepted after the producers struggled finding someone to fill the role.
Badgley, who was there to promote , but he did offer his support and affection, telling PEOPLE, “Unfortunately, her premiere is, like, right now, otherwise, we would be at each other’s.” “I am [proud of her], absolutely,” he added at the time.
what the relationship taught him, Badgley replied: "I don't know if I can distill it into a sentence, or even articulate it."We were very much caught up in the show, which itself was a six-year endurance test.
Our relationship was a part of that and helped us through it.
In 2002, he starred in the WB comedy-drama series Do Over as Joel Larsen, a 34-year-old man who gets a second chance to get his life right, thanks to a freakish accident that catapults him back to 1980, as a 14-year-old.
Badgley went on to star in two other WB series: The Mountain (2004–2005) and The Bedford Diaries (2006).